Vane-wheel pump.



A. WAGNER.

VANE WHEEL PUMP. APPLICATION FILED NOV.18,1911.

vvlT/vEssssd %I%/M- M UNITED STATES PATENT. oEFicE.

ALFRED wAcnr E, or ZURICH, SWITZERLAND? VANE-WHEEL PUMP.

Specification of Letters Patent. Patented Feb, 10, 1914, Application filed November 18, 1911. Serial No. 660;!)83.

To all whom it may concern Be, it lmown that I,' ALFRED WA'cHrER, a

.citizen of Switzerland, residing at 78 wheel pump in which in a pump casing flexible vanes are attached to the inside of a driven drum and to a cylinder which rotates within the latter and .eccentrically thereto. At each revolutionof the drum therefore the distance of the points of at tachment of the vanes between the drum and the c linder will be successively increased and ecreased.

In the drawing is shown by wa of'example a constructional form of t e vanewheel pump, Figure 1 being a'section on the" line CG of Fig. 2 and F1g. 2 a section on the line A- A of Fig. 1.

1 is a pum I casing which has two connecting branc es 2 for the joining on of a supply and discharge pipe respectively. In the pump casing 1s mounted a revolving cylindrical drum 3, which is closed in at the sides and is concentric witlfa shaft 4. The

drum has, in its periphery holes 5, which are separated. from each other by ribs 6 mounted parallel to the axis of the drum. The shaft Lisdriven from any source of power.

Mounted upon a cranked shaft 8 inside the drum 3. and eccentrically thereto is a cylinder 7 which approximatel fills up the entire width of the drum. T e shaft 8 is stationary. Between the wall of the; cylinder 7 and the drum 3 are attached vanes 9 made of flexible material which are attached by one end to the ribs 6 of the drum and have their other ends clampedfast in slots provided in the wall of the cylinder 7 and parallel to the shaft 8. y

When. the cylinder 3 is rotated, the vanes act as drivers for the cylinder 7, so that it likewise has to partake of the rotation in the same direction. At the same time the distance between the points of attachment of the vanes between the drum and the cylinder are increased'and decreased at every rotation in consequence of the eccentric mounting of the drum. When the distances are end to the driven drum and at the other end to the cylinder.

2. In a vane wheel pum a drum rota-ting within a drum casing, flexible vanes each secured at their outer ends to said drum, an

inner cylinder mounted on a stationary cranked shaft arranged eccentrically within said drum, and slots in said inner cylinder for clampmg the inner ends of said vanes.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALFRED AOHTER.

Witnesses:

CONRAD BoLTsHAUsEn, CARL GUBLER.

increased air-.is taken into the space between the vanes through the holes 5 and afterward forced out again when the distances of the 

